The year 2039 will be in 21 years.
2039 won't be a leap year, it will have 365 days.
It will begin and end with a Saturday.
It will be in the 21. century.
ISO 8601: The first calender week of the year will begin on Monday, January the 3. This year will have 52 calendar weeks.

Calendar for the year 2039.
The perpetual calendar can display all dates between 1800 and 2400.